In order to obtain optimum performance, the operation of the device must be
performed in accordance with these Instructions for Use. Maintenance should
be performed only by trained personnel authorized by the manufacturer.
1.2 Intended Use
The AII-3000 Series Oxygen Analyzers are intended to measure and display
the concentration of oxygen in compressed breathing air tanks intended for
scuba diving, for personnel safety, area monitoring, O2 deficiency in confined
spaces, checking breathing air tanks and confirming the O2 levels prior to
welding.
1.3 Device Description
The AII-3000 Series Oxygen Analyzers can be positioned on a table top or
pole (tripod wire stand and V-mount dovetail attachments are mounted on the
back of the device) and are readily portable from one location to another.
They provide continuous, fast, reliable and accurate oxygen measurements of
up to respiratory care systems.
The devices utilize an electrochemical galvanic fuel cell type oxygen sensor of
the type that is extensively used to measure oxygen concentrations from 0%
to 100% in gas streams. Oxygen, the fuel for this electrochemical transducer,
diffusing into the sensor through a gas permeable membrane reacts chemical-
ly at the sensing electrode to produce an electrical current output proportional
to the oxygen concentration in the gas phase. The sensor has an absolute
zero meaning that when no oxygen is present to be chemically reacted the
LCD displays 00.0 oxygen.
The sensor’s signal output is linear over the entire range, remains virtually
constant over the specified useful life and drops off sharply at the end. The
sensor itself requires no maintenance and is simply replaced at the end of its
useful life like a battery. Inasmuch as the sensor is a transducer in its own
right, its expected life is not affected by whether the analyzer is ON or OFF.
A battery powered state-of-the-art micro-
processor converts the sensor’s sig-
nal output representing the partial pressure of oxygen in the gas stream being
analyzed. The resulting oxygen reading is displayed by a large easy to read
backlit liquid crystal display (LCD) that has a resolution of 0.1% oxygen. The
microprocessor is controlled from a keypad and provides features like system
diagnostics, warning indicators, controls and an alarm capability for continu-
ous monitoring that enhance both safety and effectiveness.
Prior to shipment, every device is thoroughly tested at the factory and docu-
mented in the form of a Quality Control Certification that is included in the
Instructions for Use supplied with every device.
2
2
Quality Control Certification
3
Customer:
________________________ Order No. _____________ Date: _______
Model:
( ) AII-3000 A Oxygen Analyzer
( ) AII-3000 M Oxygen Analyzer
( ) AII-3000 AHC Oxygen Analyzer
( ) AII-3000 MHC Oxygen Analyzer S/N _______________
Sensor:
( ) AII-11-60 or ( ) AII-11-60-HC S/N _______________
Electronics:
A-1152 PCB Assembly Main Software Version _______________
Accessories:
AII-3000 A / M: CABL-1006 Cable, Coiled Phone Jack
AII-3000 AHC / MHC: TUBE-
1019 7/32” OD Tubing 3 ft.
All units: BATT-1008 Battery, 1.5V AA (Qty 2)
P-
0187 Manual, Instructions for Use ……… Included ______
PASS
QC Test:
LCD display 3-
1/2 digits ……………………………………………………. ______
Battery symbol displays when battery is low ……………………….. ______
Span adju10-30% FS with 100% oxygen
calibration ______
Following calibration with 99-100% oxygen and flushing with
ambient air, oxygen reading as displayed by LCD 20.9% +2%
____
Span adju10-
30% FS with air calibration ……………….. ______
Following calibration with air (20.9% oxygen) and exposing
to 99-100% oxygen, LCD displays 100% +
2% ……………………. ______
Overall inspection for physical defects ………………………………... ______
Qty
Options:
_____________________________________________
____
See Sec 8.1
____________________________________________________ _____
____________________________________________________ _____
____________________________________________________
____
____________________________________________________ _____
Delivery:
____________________________________________________
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